分析:由全集U={1,2,3,4,5,6,7},集合A={1,3,5},集合B={3,5},知∁UB={1,2,4,6,7},由此能导出A∪(∁UB)=U.解答:解:∵全集U={1,2,3,4,5,6,7},集合A={1,3,5},集合B={3,5},∴∁UB={1,2,4,6,7},∴A∪(∁UB)={1,2,3,4,5,6,7}=U,故选C.点评:本题考查集合的交、并、补集的混合运算,是基础题.解题时要认真审题,仔细解答,注意合理地进行等价转化.